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I wanted everybody to know that I have just spoke with Fred Rupert at MP Brakes (1-888-351-8785 Ext.211) and I explained the situation with the brakes and he said that if I send them my TreadleVac that they will make a bolt in replacement with the same valving and travel, pedal ratio, etc.. it will be a dual resevoir with remote fill and bolt right in -- will cost $495 but I'm sure that price will come down as more people buy the kit -- so, maybe this is a alternative or a "fix", I can't do it right now but I will in the near future but I wanted to let yall know that I have a possibility for those of us who want to change out the TreadleVac

I'm not here to argue about the greatness of TreadleVac either, this is for people who would like to change out their booster and master cylinder only, if you are happy with what you have then by all means, carry on, as I will do the same

Ask him if he can set one up with a SINGLE line master cylinder. I'm guessing as more and more conversions come about there will either be demand for single cylinder or a proportioning valve set up to be added to tandem cylinders.

My personal preference is a single line cylinder with NO prop valve.

Since the MC sets so low it mite be a good idea to have a bleeder screw on the MC too.

Quote:


I called him back and they do not offer single line master cylinders..

What about service replacement parts for the future???

Here is what i'm not sure of:
Some tandem cylinders are spring loaded between primary and secondary pistons. Some are NOT.

For those of us that want a SINGLE line and NO prop valve then what about just connecting the TWO lines of the tandem cylinder together at or near the output ports of the cylinder????

There are TWO types of TANDEM cylinders. Is the tandem cylinder he offers a DUAL reservoir or a SINGLE reservoir MC???

Fred Rupert at MP Brakes (1-888-351-8785 Ext.211)

this is the number, call him and ask him, I don't know the answers to your questions and he probably does so there is no reason for me to be the middle man when you can simply call him yourself -- as in my first post on the subject, I just asked for a bolt in replacement for the TreadleVac, thats it

<p>PackardV8 wrote:</p>
Quote:
<p>Since I used an MPB dual MC, I can confirm that no bleeder valve was needed since I used a remote fill reservoir mounted at battery height. Also, no prop valve was needed with my disc/drum setup. No residual valve was required either. My brakes works like any modern car without ABS.</p>
<p>Keith, I agree with Joe, you have too many questions that are better addressed directly to MPB. Let us know what you find out.</p><p>Craig</p>

<p>Joe,</p>
<p>When you do finally order MPB's custom BTV replacement, it would probably be helpful for them to include this picture to illustrate the fitment problem:</p>
<img src="http://www.1956packardpanther.com/MPBInstalled.jpg">
<p>An 8in diameter diaphram could be used if one were willing to locate the pedal rod 1/2in lower than stock. This may possibly let one use a slightly thicker diaphram so that a dual diaphram unit could be fitted possibly obviating the need for a reengineered pedal assembly. Only trial fit will tell the tale.</p>
<p>Craig</p>